i've milled alot of acetal. The case below is a partial hybrid of sorts I made for my 95 year old grandmother. (please ignore the mill hole, we have had the strategy fixed since then to not do whatever it was doing) The teeth in the anterior are denture teeth glued on with the special acetal...
milling eMax depends on your cam providers strategies... try to talk to other people using the same strategies and ask what kind of results they get... do they ever break tools? Are the fits drop on or are they grinding in occasionally?
Yes, the furnace is our newest one. But i did do a vacuum test and it doesn't drop a pinch of air. I have the vacuum start at 450 and release 15 seconds into the 1min hold.
The pitting happens from the 1st bake so I haven't ground anything yet. But thanks for the blue wheel tip.
I'm gonna...
I fired a couple shade tabs, 1 from each furnace. Thanks Al
They are porous and 1 is noticeably yellow. So all furnaces are getting purged with fire trays and pegs. I'm cleaning everything.
I'll check for line filters next.